"Doubt is not a pleasant condition, but certainty is an absurd one. What is most repellent in the System of Nature - after the recipe for making eels from flour - is the audacity with which it decides that there is no God, without even having tried the impossibility. If God did not exist, he would have to be invented." But all nature cries aloud that he does exist: that there is a supreme intelligence, an immense power, an admirable order, and everything teaches us our own dependence on it."